In pictures: World's largest IT fair, CeBIT

Formula One driver Lewis Hamilton of McLaren Mercedes poses at the Vodafone booth during CeBIT IT fair on March 1, 2011. More than 4,200 tech firms from 70 countries and 350,000 visitors are expected to attend this year's CeBIT. The fair runs until March 5, 2011. (Photo: AFP)

German Chancellor Angela Merkel is hugged by a mascot as she visits the stand of Turkish mobile phone operator Tukcell at CeBIT IT fair on its opening day. (Photo: AFP)

Visitors enjoy the antics of a life-sized humanoid robot named "RoboThespian". The robot has been created to educate, communicate, interact and entertain. It costs $90,000 and is already being used by NASA. (Photo: AFP)

A Samsung 4G LTE network stick offered by Vodafone is pictured at the CeBIT IT fair. The IT industry wowed visitors with head-spinning futuristic gadgets and the latest in 'cloud computing' technology. (Photo: AFP)

People stand in front of an IBM "smarter cloud" advertisement, as preparations are under way for the CeBIT IT fair. (Photo: AFP)

A man works on a booth promoting computer hardware cooling products at the CeBIT IT fair. (Photo: AFP)

A man inspects a touchscreen by 3M, at the CeBIT IT fair. (Photo: AFP)

A woman demonstrates the "Interactive shop window" on a screen presented by the Fraunhofer Institute at the CeBIT IT fair. (Photo: AFP)

A woman wears 3D glasses. (Photo: AFP)

German Chancellor Angela Merkel, Turkish Prime Minister Recep Tayyip Erdogan and his wife Emine Erdogan arrive for the opening ceremony for the CeBIT IT fair on February 28, 2011 in Hanover. Turkey is the partner country of this year's CeBIT edition. (Photo: AFP)